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P2 Addition with Carrying: Ten Challenge Items
P2 Addition with Carrying: Ten Challenge Items
Reverse questions, three digits and three-number sums.
Direct answers Answers: 135, 135, 45, 125, 143, 104, 223, $5, 125 pages, 152.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: P2 Two-digit Addition with Carrying |
| Level | P2 (challenge) |
02 Questions (10 items)
- Foundation89 + 46 = ?
- Foundation78 + 57 = ?
- FoundationA number plus 47 gives 92. What is the number?
- IntermediateWork out 67 + 58 in column form.
- IntermediateDo 65 + 78 and 66 + 77 give the same total?
- Intermediate48 + 37 + 19 = ?
- Challenge145 + 78 = ?
- ChallengeYou pay $100 for a $58 book and a $37 pen. How much change?
- ChallengeOne book has 68 pages and another 57. How many pages in all?
- Error redoA student answered 142 for 85 + 67. What went wrong, and what is correct?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 135 | 9 plus 6 is 15, carry 1; 8 plus 4 plus 1 is 13, so 135. |
| 2 | 135 | 8 plus 7 is 15, carry 1; 7 plus 5 plus 1 is 13, so 135. |
| 3 | 45 | Work backwards with subtraction: 92 minus 47 is 45. |
| 4 | 125 | 7 plus 8 is 15, carry 1; 6 plus 5 plus 1 is 12, so 125. |
| 5 | Yes, both are 143 | Adding 1 to one number and taking 1 from the other keeps the total. |
| 6 | 104 | 48 plus 37 is 85, then 85 plus 19 is 104. |
| 7 | 223 | 5 plus 8 is 13, carry 1; 4 plus 7 plus 1 is 12, carry 1; 1 plus 1 is 2, so 223. |
| 8 | $5 | 58 plus 37 is 95, and 100 minus 95 is 5, so the change is $5. |
| 9 | 125 pages | 68 plus 57: 8 plus 7 is 15, carry 1; 6 plus 5 plus 1 is 12, so 125. |
| 10 | He left out the carried ten when adding 8 and 6; the correct answer is 152 | 5 plus 7 is 12 so carry 1; 8 plus 6 plus 1 is 15, giving 152. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
Mark every carry and check with subtraction.Tutor Registration →
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